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  5. Approaching the Limit of Energy Loss in Polymer Solar Cells:From Materials to Devices

Approaching the Limit of Energy Loss in Polymer Solar Cells:From Materials to Devices

来源 :2016第二届有机光电材料与器件国际会议 | 被引量 : 0次 | 上传用户：kick666
【摘 要】
：
Energy loss(Eloss),defined as the difference between optical band gap(Eg)and open-circuit voltage(Voc),is a key parameter to restrict the power conversion efficiency(PCE)of solar cells.According to Sh
【作 者】
：
Weiwei Li 
【机 构】
：
Beijing National Laboratory for Molecular Sciences,CAS Key laboratory of Organic Solids,Institute of
【出 处】
：
2016第二届有机光电材料与器件国际会议
【发表日期】
：
2016年5期
【关键词】
：
polymer solar cells energy loss conjugated polymer 
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　　Energy loss(Eloss),defined as the difference between optical band gap(Eg)and open-circuit voltage(Voc),is a key parameter to restrict the power conversion efficiency(PCE)of solar cells.According to Shockley-Queisser limit,Eloss is about 0.3 eV in ideal solar cells due to radiative recombination,while real solar cells always provide high Eloss.For instance,single-crystal Si solar cells show Eloss of 0.41 eV with a high PCE above 25%.
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